27664021276 has 12 divisors (see below), whose sum is σ = 49537898872. Its totient is φ = 13510335888.

The previous prime is 27664021271. The next prime is 27664021283. The reversal of 27664021276 is 67212046672.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27664021271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80418495 + ... + 80418838.

Almost surely, 2^27664021276 is an apocalyptic number.

It is an amenable number.

27664021276 is a deficient number, since it is larger than the sum of its proper divisors (21873877596).

27664021276 is a wasteful number, since it uses less digits than its factorization.

27664021276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160837380 (or 160837378 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 27664021276 in words is "twenty-seven billion, six hundred sixty-four million, twenty-one thousand, two hundred seventy-six".